Originally Posted by Guitar Jones
It's not the trans where I see the problem but the torque converter. The lockup would build less heat than the non lockup but I'm concerned about how much the converter and lockup clutch would take in that smaller size.


These guys claim 600-1000HP for their $1k 46RH TCs
http://www.torqueconvertershop.com/torque_converter_904_727_518_46r.htm
remains to be seen if they warrantee them for RV use.

I may have been wrong about the exorbitant price of Allisons, pricey still
https://www.bullripper.com/HEAVY-DUTY-ALLISON-LCT1000-p/t13.htm